Outdoor lighting fixture with adjustable mount



H. A. BACON Filed Aug. 25, 1955 OUTDOOR LIGHTING FIXTURE WITH ADJUSTABLEMOUNT Dec. 10,1957

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United States Patent OUTDOOR, LIGHTING FIXTURE WITH ADJUSTABLE MOUNTHarold A. Bacon, Stockton, Calif., assignor to Electric Lighting, Inc.,Stockton, Calif., a corporation of California Application August25,1955, Serial No. 530,553

2. Claims. (Cl. 240-3) This invention relates in general to animprovement in outdoor lighting fixtures, and particularly to the typewherein an elongated fixture is supported above-ground by spaced posts;one example of suchan arrangement being those fixtures-for servicestation 1ightingwhich are post-supported a distance above the gasolinepumps.

In erecting such a lighting, fixture the spaced posts are first securedat their lower ends in the ground, or the island for the gasoline pumps,and then the fixture is attached to the posts by mounting units havingsockets adapted to receive the upper ends of said posts. Heretofore,however, the mounting units occupied a fixed position on the fixture,and any slight mis-spacing of the posts prevented them from engaging inthe related sockets of said units.

It is therefore the major object of this invention to provide an outdoorlighting fixture, of the type described, wherein the mounting units areadjustable relative to each other lengthwise of the fixture; theadvantage being that said mounting units can be so adjusted tocompensate for any mis-spacing of the posts, and whereby the same can bereadily engaged in the sockets of said units.

Another important object of the present invention is to construct suchmounting units so that the adjustment thereof can be readily andconveniently accomplished in the field.

It is also an object of the invention to provide adjustable mountingunits, for an outdoor lighting fixture, which are designed for ease andeconomy of manufacture, and ready embodiment in the fixture assembly.

Still another object of the invention is to provide practical, reliable,and durable adjustable mounting units for an outdoor lighting fixture,and ones which will be exceedingly effective for the purpose for whichthey are designed.

These objects are accomplished by means of such structure and relativearrangement of parts as will fully appear by a perusal of the followingspecification and claims.

In the drawings:

Fig. 1 is a side elevation of an erected outdoor lighting fixtureembodying the novel adjustable mounting units; the posts being shownforeshortened.

Fig. 2 is an enlarged transverse vertical section taken on line 22 ofFig. 1.

Fig. 3 is an enlarged fragmentary longitudinal vertical section taken online 3-3 of Fig. 2.

Referring now more particularly to the drawings, and to the charactersof reference marked thereon, the elongated, above-ground fixture isindicated generally at 1, such fixture being supported by spaced,vertically disposed posts 2 which are secured at their lower ends,either in the ground or in a base or island 3. The fixture 1 spansbetween, and is attached to, the upper ends of the posts 2 bycorresponding mounting units, each of which is indicated generally at 4.

The fixture 1 includes a horizontal, elongated reflector hood 5, whichintransverse section-is generally concave on the under side; there being acentral longitudinal box 6 disposed in the hood and extendingsubstantially the fulllength thereof; such box including a top 7 onwhich the related portion of the hood 5 bears, sides 8, and initiallydetached bottom covers 9.

The sides 8 are formed, along their lower edges, with inturned flanges10, and eachmounting unit 4 includes a horizontal, rectangularattachment plate 11 which spans between, and bears against, the flanges10 from the under side. A downwardly opening or depend-ing socket 12 iscarried by each attachment plate 11 and receives the upper end of therelated post 2.

Each. post 2 and socket 12 are normally maintained '10 and are securedto the inner face of the sides 8 by means of bolts 15; the channels 14being disposed in the Zone of the related mounting unit 4 and being of alength to permit of a considerable range of adjustment of said unitlengthwise of the fixture in one direction or the other.

A rectangular backing plate 16 is disposed in the box 6, with theopposed longitudinal edge portions of said plate engaging incorresponding channels 14, and in initially slidable relation.

Cap screws 17 pass through the corners of the attachment plate 11 andare threaded in the backing plate 16. When such cap screws 17 are loose,the attachment plate 11 and the backing plate 16 are adjustable, butsliding, lengthwise of the channels 14; this to the end that thedepending socket 12 can be readily positioned for engagement on therelated post 2. After the adjustment is effected the cap screws 17 aretightened, which binds the attachment plate 11 against the under side ofthe inturned flanges 10, and also binds the backing plate 16 in thechannels 14; all whereby the corresponding mounting unit 4 is thereaftermaintained in a fixed position with respect to the box 6.

In this manner the mounting units 4 of the fixture 1 can be readily setin the field for matching engagement with the posts 2, although thelatter may have some misspacing over that which was originallyspecified.

After the mounting units 4 are so adjusted and secured to the posts 2,the initially open bottom of the box 6 is closed by the bottom covers 9.Such covers 9 include, at their opposed, longitudinal edges, upstandingflanges 18 which engage externally on the sides 8. The bottom covers 9are cut to length on the job and after the mounting units 4 are adjustedto position; the attachment plates 11 being transversely notched atopposite ends, as at H, for the receptionin supporting relation-of theadjacent ends of said bottom covers. At other points the bottom covers 9are secured to the box 6 by any suitable means.

The lighting instrumentalities, here longitudinal fluorescent tubes 20,are suitably secured in the fixture, by means including transversesocket plates 21, on opposite sides of the box 6, as shown in Fig. 2.

From the foregoing description it will be readily seen that there hasbeen produced such a device as will substantially fulfill the objects ofthe invention, as set forth herein.

While this specification sets forth in detail the present and preferredconstruction of the device, still in practice such deviations from suchdetail may be resorted to as do not form a departure from the spirit ofthe invention as defined by the appended claims.

Having thus described the invention, the following is claimed as new anduseful, and upon which Letters Patent are desired:

1. In an outdoor lighting fixture which includes a supporting post, anelongated lighting assembly above the post and including alongitudinally extending openbottomed box, means to mount the assemblyon the post including a horizontalattachment plate secured on top of thepost and bearing against the sides of the box along the lower edgesthereof, means to releasably clamp the plate to the box, the plateclosing the adjacent portion of the bottom of the box,.removable coverplates for the remaining areas of the bottom of the box; each coverplate extending along the box from one end of the attachment plate andengaging the sides of the box along the lower edges thereof, andupstanding stiffening flanges along the side edges of the cover platelapping the sides of the box; the adjacent end of the attachment platebeing transversely notched across its upper surface to receive thecorresponding end of the cover plate in supporting relation.

2. In an outdoor lighting fixture which includes a supporting post, anelongated lighting assembly above the post and including alongitudinally extending openbottomed box, said box including flangesprojecting laterally inward from the lower edges of the sides thereof,laterally inwardly opening rigid channels secured in the box above andengaging the flanges, a rectangular horizontal attachment plate slidablyengaging the flanges on their under side, the channels extending beyondboth ends of the plate some distance, a downwardly opening socket rigidwith and depending from the plate to removably engage over the upper endof the post with a straight downward movement, a backing plate supportedin the channels for sliding movement lengthwise therein, and a pluralityof removable bolts connecting the plates to draw the same together; thebolts being disposed for operation from below and arranged clear of thepost and of the flanges and channels.

References Cited in the file of this patent UNITED STATES PATENTS D.173,255 Brooks et al Oct. 19, 1954 1,682,693 Day Aug. 28, 1928 1,945,832Strang Feb. 6, 1934 2,183,647 Holden Dec. 19, 1939 2,269,165 RutledgeIan. 6, 1942 2,328,445 Francis Aug. 31, 1943 2,667,570 Goldthorpe Jan.26, 1954 FOREIGN PATENTS 563,733 Great Britain Aug. 28, 1944 623,992Great Britain May 26, 1949 464,990 Italy Aug. 4, 1951

